Edit 1 :
If you’re fed up with companies fucking you over there’s an alternative.
There software called Nextcloud which you can run on a server which works in comparable ways as Onedrive/Google Drive/Dropbox/etc. works.
You could host it yourself on a server if you know how.
If you’re not familiar with forwarding ports or setting static IP adresses you can rent some server space from Hetzner where Nextcloud is included.
Edit 2 :
I’m totally in favor with your post, but not everyone is willing to self-host or is capable of doing it. So I recommendation would be and one that I’m currently using, is when uploading a file to these cloud services encrypt your files. I’m using #cryptomator, but I’m sure there are other alternatives, like #rclone. There is also #veracrypt, but to my understanding, is not great for cloud sync.
Cryptomator official website Quick youtube video in how to use cryptomator (3:51)
Cryptomator is open source and free, but only on desktop. To use the mobile version, you will have to pay. Here is a list of alternatives to cryptomator, if you are familiar with one, please share your knowledge.
Edit 3 :
Don’t forget Syncthing, I always suggest it first since it doesn’t require a server or advanced knowledge to work.
There is pCloud which is based in Switzerland which has mostly the same regulation as the EU. They specifically state that they won’t use your data for commercial purposes. Until the company merges or gets bought I guess.
Ofc if it’s not end-to-end encrypted and all open source and self hosted, you can’t really be sure.
Which you won’t hear about until after all the existing data has been scraped off the servers. The company, if bought, will be bought for the value of their data stores and whatever corporation purchases them will specifically want to keep the news quiet until after they’ve gotten their value out of the data store. Therefore this is a non-starter as you may as well just hand the info to Dropbox today.